CVE-2025-47952

Traefik allows path traversal using url encoding

State
Published
Severity
2.9 Low
Published
May 30, 2025
Updated
May 30, 2025
Reserved
May 14, 2025

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Description

Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. Prior to versions 2.11.25 and 3.4.1, there is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a URL encoded string in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.25 and 3.4.1.

Scores

CVSSScoreVectorSource
4.02.9 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:PGitHub_M

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

ProductVersions
traefiktraefik
  • < 3.4.1Affected
  • < 2.11.25Affected

References

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